RT Journal Article
SR Electronic
T1 Pyramids are guides not rules: the evolution of the evidence pyramid
JF Evidence Based Medicine
JO Evid Based Med
FD BMJ Publishing Group Ltd
SP 121
OP 122
DO 10.1136/ebmed-2016-110498
VO 21
IS 4
A1 Terrence Shaneyfelt
YR 2016
UL http://ebm.bmj.com/content/21/4/121.abstract
AB